JP3678651B2 - 廃水からの弗素化アルカン酸の回収方法 - Google Patents

廃水からの弗素化アルカン酸の回収方法 Download PDF

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Publication number: JP3678651B2
Authority: JP; Japan
Prior art keywords: acid; wastewater; exchange resin; fluorinated; fluorinated emulsifier
Prior art date: 1998-06-02
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

JP2000552073A

Other languages

English (en)

Japanese (ja)

Other versions

JP2002516892A (ja

Inventor

フェーリクス・ベルント

ズルツバッハ・ラインハルト

フューラー・シュテファン

カイザー・トーマス

クニープ・ハーゲン

ブーデスハイム・アルミーン

Original Assignee

ダイネオン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト

アクシバ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1998-06-02

Filing date

1999-05-27

Publication date

2005-08-03

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7869667&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP3678651(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1999-05-27 Application filed by ダイネオン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト, アクシバ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング filed Critical ダイネオン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト

2002-06-11 Publication of JP2002516892A publication Critical patent/JP2002516892A/ja

2005-08-03 Application granted granted Critical

2005-08-03 Publication of JP3678651B2 publication Critical patent/JP3678651B2/ja

2019-05-27 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

239000002253 acid Substances 0.000 title claims abstract description 37
239000002351 wastewater Substances 0.000 title claims abstract description 33
238000000034 method Methods 0.000 title claims description 35
150000007513 acids Chemical class 0.000 title abstract description 7
239000003995 emulsifying agent Substances 0.000 claims abstract description 31
239000007787 solid Substances 0.000 claims abstract description 17
239000003957 anion exchange resin Substances 0.000 claims abstract description 10
239000003456 ion exchange resin Substances 0.000 claims description 14
229920003303 ion-exchange polymer Polymers 0.000 claims description 14
NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 13
239000002244 precipitate Substances 0.000 claims description 9
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 7
239000000126 substance Substances 0.000 claims description 7
238000006116 polymerization reaction Methods 0.000 claims description 6
150000001450 anions Chemical class 0.000 claims description 5
239000000178 monomer Substances 0.000 claims description 5
235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
235000011941 Tilia x europaea Nutrition 0.000 claims description 3
150000002500 ions Chemical class 0.000 claims description 3
239000004571 lime Substances 0.000 claims description 3
239000000463 material Substances 0.000 claims description 3
239000008267 milk Substances 0.000 claims description 3
210000004080 milk Anatomy 0.000 claims description 3
235000013336 milk Nutrition 0.000 claims description 3
239000000203 mixture Substances 0.000 claims description 3
KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 3
AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 2
238000005188 flotation Methods 0.000 claims description 2
229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
239000011707 mineral Substances 0.000 claims description 2
239000003960 organic solvent Substances 0.000 claims description 2
238000004062 sedimentation Methods 0.000 claims description 2
239000000243 solution Substances 0.000 claims 2
239000012266 salt solution Substances 0.000 claims 1
239000001384 succinic acid Substances 0.000 claims 1
239000011347 resin Substances 0.000 abstract description 3
229920005989 resin Polymers 0.000 abstract description 3
238000011084 recovery Methods 0.000 abstract 1
MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 12
VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 8
YFSUTJLHUFNCNZ-UHFFFAOYSA-N perfluorooctane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-N 0.000 description 7
229920000642 polymer Polymers 0.000 description 6
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
230000002452 interceptive effect Effects 0.000 description 5
150000003839 salts Chemical class 0.000 description 5
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
150000003863 ammonium salts Chemical class 0.000 description 4
ABDBNWQRPYOPDF-UHFFFAOYSA-N carbonofluoridic acid Chemical compound OC(F)=O ABDBNWQRPYOPDF-UHFFFAOYSA-N 0.000 description 4
238000001914 filtration Methods 0.000 description 4
239000011521 glass Substances 0.000 description 4
229910052751 metal Inorganic materials 0.000 description 4
239000002184 metal Substances 0.000 description 4
235000006408 oxalic acid Nutrition 0.000 description 4
239000011343 solid material Substances 0.000 description 4
239000007858 starting material Substances 0.000 description 4
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
230000002776 aggregation Effects 0.000 description 3
-1 alkali metal salts Chemical class 0.000 description 3
239000000084 colloidal system Substances 0.000 description 3
238000010828 elution Methods 0.000 description 3
238000011068 loading method Methods 0.000 description 3
239000002245 particle Substances 0.000 description 3
230000001376 precipitating effect Effects 0.000 description 3
BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
230000002378 acidificating effect Effects 0.000 description 2
238000005054 agglomeration Methods 0.000 description 2
229910052782 aluminium Inorganic materials 0.000 description 2
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
235000011114 ammonium hydroxide Nutrition 0.000 description 2
150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
229920001429 chelating resin Polymers 0.000 description 2
239000003795 chemical substances by application Substances 0.000 description 2
238000007334 copolymerization reaction Methods 0.000 description 2
239000006185 dispersion Substances 0.000 description 2
238000009297 electrocoagulation Methods 0.000 description 2
229920002313 fluoropolymer Polymers 0.000 description 2
229910052742 iron Inorganic materials 0.000 description 2
239000000047 product Substances 0.000 description 2
230000008929 regeneration Effects 0.000 description 2
238000011069 regeneration method Methods 0.000 description 2
238000001179 sorption measurement Methods 0.000 description 2
238000003756 stirring Methods 0.000 description 2
OVGRCEFMXPHEBL-UHFFFAOYSA-N 1-ethenoxypropane Chemical compound CCCOC=C OVGRCEFMXPHEBL-UHFFFAOYSA-N 0.000 description 1
BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
239000005909 Kieselgur Substances 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
239000013543 active substance Substances 0.000 description 1
239000003463 adsorbent Substances 0.000 description 1
230000004931 aggregating effect Effects 0.000 description 1
238000004220 aggregation Methods 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
238000005349 anion exchange Methods 0.000 description 1
239000012736 aqueous medium Substances 0.000 description 1
239000002585 base Substances 0.000 description 1
KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
239000001110 calcium chloride Substances 0.000 description 1
229910001628 calcium chloride Inorganic materials 0.000 description 1
AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
239000000920 calcium hydroxide Substances 0.000 description 1
229910001861 calcium hydroxide Inorganic materials 0.000 description 1
229910001424 calcium ion Inorganic materials 0.000 description 1
159000000007 calcium salts Chemical class 0.000 description 1
150000001735 carboxylic acids Chemical class 0.000 description 1
239000003054 catalyst Substances 0.000 description 1
150000001768 cations Chemical class 0.000 description 1
239000001913 cellulose Substances 0.000 description 1
229920002678 cellulose Polymers 0.000 description 1
238000005119 centrifugation Methods 0.000 description 1
150000001805 chlorine compounds Chemical class 0.000 description 1
239000000701 coagulant Substances 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
238000009295 crossflow filtration Methods 0.000 description 1
238000010908 decantation Methods 0.000 description 1
230000007812 deficiency Effects 0.000 description 1
239000004815 dispersion polymer Substances 0.000 description 1
238000009826 distribution Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000005684 electric field Effects 0.000 description 1
239000003480 eluent Substances 0.000 description 1
238000010556 emulsion polymerization method Methods 0.000 description 1
238000007720 emulsion polymerization reaction Methods 0.000 description 1
150000002148 esters Chemical class 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
239000011737 fluorine Substances 0.000 description 1
229910052731 fluorine Inorganic materials 0.000 description 1
150000004679 hydroxides Chemical class 0.000 description 1
238000011065 in-situ storage Methods 0.000 description 1
238000005342 ion exchange Methods 0.000 description 1
FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
229910000358 iron sulfate Inorganic materials 0.000 description 1
BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
239000004816 latex Substances 0.000 description 1
229920000126 latex Polymers 0.000 description 1
239000007788 liquid Substances 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
229910001629 magnesium chloride Inorganic materials 0.000 description 1
159000000003 magnesium salts Chemical class 0.000 description 1
229910052943 magnesium sulfate Inorganic materials 0.000 description 1
235000019341 magnesium sulphate Nutrition 0.000 description 1
238000010297 mechanical methods and process Methods 0.000 description 1
239000012528 membrane Substances 0.000 description 1
235000010755 mineral Nutrition 0.000 description 1
239000012452 mother liquor Substances 0.000 description 1
150000003891 oxalate salts Chemical class 0.000 description 1
239000007800 oxidant agent Substances 0.000 description 1
239000010451 perlite Substances 0.000 description 1
235000019362 perlite Nutrition 0.000 description 1
239000012466 permeate Substances 0.000 description 1
229920002401 polyacrylamide Polymers 0.000 description 1
238000010094 polymer processing Methods 0.000 description 1
239000000843 powder Substances 0.000 description 1
239000004576 sand Substances 0.000 description 1
238000007711 solidification Methods 0.000 description 1
230000008023 solidification Effects 0.000 description 1
230000000087 stabilizing effect Effects 0.000 description 1
150000003460 sulfonic acids Chemical class 0.000 description 1
239000010936 titanium Substances 0.000 description 1
229910052719 titanium Inorganic materials 0.000 description 1
238000000108 ultra-filtration Methods 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
- C07C53/15—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen containing halogen
- C07C53/16—Halogenated acetic acids
- C07C53/18—Halogenated acetic acids containing fluorine
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/04—Processes using organic exchangers
- B01J41/05—Processes using organic exchangers in the strongly basic form
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/20—Anion exchangers for chromatographic processes
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
- B01J49/57—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents for anionic exchangers
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Oil, Petroleum & Natural Gas (AREA)
Water Supply & Treatment (AREA)
Environmental & Geological Engineering (AREA)
Hydrology & Water Resources (AREA)
Life Sciences & Earth Sciences (AREA)
Analytical Chemistry (AREA)
Treatment Of Water By Ion Exchange (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Removal Of Specific Substances (AREA)
Separation Of Suspended Particles By Flocculating Agents (AREA)
Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Processing Of Solid Wastes (AREA)

JP2000552073A 1998-06-02 1999-05-27 廃水からの弗素化アルカン酸の回収方法 Expired - Fee Related JP3678651B2 (ja)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE19824614.5		1998-06-02
DE19824614A DE19824614A1 (de)	1998-06-02	1998-06-02	Verfahren zur Rückgewinnung von fluorierten Alkansäuren aus Abwässern
PCT/EP1999/003672 WO1999062858A1 (de)	1998-06-02	1999-05-27	Verfahren zur rückgewinnung von fluorierten alkansäuren aus abwässern

Publications (2)

Publication Number	Publication Date
JP2002516892A JP2002516892A (ja)	2002-06-11
JP3678651B2 true JP3678651B2 (ja)	2005-08-03

Family

ID=7869667

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP2000552073A Expired - Fee Related JP3678651B2 (ja)	1998-06-02	1999-05-27	廃水からの弗素化アルカン酸の回収方法

Country Status (16)

Country	Link
US (1)	US6613941B1 (de)
EP (2)	EP1084097B1 (de)
JP (1)	JP3678651B2 (de)
KR (1)	KR100518480B1 (de)
CN (1)	CN1134403C (de)
AT (2)	ATE307793T1 (de)
AU (1)	AU4370199A (de)
CA (1)	CA2334105A1 (de)
DE (3)	DE19824614A1 (de)
ES (1)	ES2176137T3 (de)
HU (1)	HUP0102469A2 (de)
PL (1)	PL193358B1 (de)
RU (1)	RU2226186C2 (de)
TR (1)	TR200003530T2 (de)
WO (1)	WO1999062858A1 (de)
ZA (1)	ZA200006907B (de)

Families Citing this family (102)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19824615A1 (de) *	1998-06-02	1999-12-09	Dyneon Gmbh	Verfahren zur Rückgewinnung von fluorierten Alkansäuren aus Abwässern
DE19857111A1 (de) *	1998-12-11	2000-06-15	Dyneon Gmbh	Wäßrige Dispersionen von Fluorpolymeren
DE19932771A1 (de)	1999-07-14	2001-01-18	Dyneon Gmbh	Verfahren zur Eluierung fluorierter Emulgatoren
DE19933696A1 (de) *	1999-07-17	2001-01-18	Dyneon Gmbh	Verfahren zur Rückgewinnung fluorierter Emulgatoren aus wässrigen Phasen
DE19953285A1 (de)	1999-11-05	2001-05-10	Dyneon Gmbh	Verfahren zur Rückgewinnung fluorierter Emulgatoren
US6720360B1 (en) *	2000-02-01	2004-04-13	3M Innovative Properties Company	Ultra-clean fluoropolymers
US6794550B2 (en)	2000-04-14	2004-09-21	3M Innovative Properties Company	Method of making an aqueous dispersion of fluoropolymers
US6281374B1 (en) *	2000-08-23	2001-08-28	E. I. Du Pont De Nemours And Company	Fluorinated alkanoic acid purification process
US7125941B2 (en) *	2001-03-26	2006-10-24	3M Innovative Properties Company	Aqueous emulsion polymerization process for producing fluoropolymers
US7045571B2 (en)	2001-05-21	2006-05-16	3M Innovative Properties Company	Emulsion polymerization of fluorinated monomers
US6737489B2 (en)	2001-05-21	2004-05-18	3M Innovative Properties Company	Polymers containing perfluorovinyl ethers and applications for such polymers
US7279522B2 (en)	2001-09-05	2007-10-09	3M Innovative Properties Company	Fluoropolymer dispersions containing no or little low molecular weight fluorinated surfactant
JP2003220393A (ja) *	2001-11-22	2003-08-05	Asahi Glass Co Ltd	含フッ素乳化剤の吸着・回収方法
US6822059B2 (en)	2002-04-05	2004-11-23	3M Innovative Properties Company	Dispersions containing bicomponent fluoropolymer particles and use thereof
US6833418B2 (en)	2002-04-05	2004-12-21	3M Innovative Properties Company	Dispersions containing perfluorovinyl ether homopolymers and use thereof
EP1441014A1 (de) *	2003-01-22	2004-07-28	3M Innovative Properties Company	Wässrige Dispersion eines in der Schmelze verarbeitbaren Fluoropolymeren mit vermindertem Gehalt an fuorierten Emulgatoren
FR2856934B1 (fr) *	2003-07-02	2005-08-19	Atofina	Procede de recuperation de tensioactifs fluores par du charbon actif
US6991732B2 (en)	2003-07-02	2006-01-31	Arkema	Process for the recovery of fluorosurfactants by active charcoal
ATE529451T1 (de) *	2003-11-17	2011-11-15	3M Innovative Properties Co	Wässrige ptfe-dispersionen mit einem niedrigen gehalt an fluorierten emulgatoren
EP1561742B1 (de) *	2004-02-05	2012-11-21	3M Innovative Properties Company	Verfahren zur Rückgewinnung von fluorierten, Säuregruppen enthaltenden Tensiden von damit beladenen Adsorptionsmitteln
EP1561729A1 (de) *	2004-02-05	2005-08-10	3M Innovative Properties Company	Entfernung von fluorierten Tensiden aus Abwasser
US7304101B2 (en) *	2004-07-19	2007-12-04	3M Innovative Properties Company	Method of purifying a dispersion of ionic fluoropolymer
US20060014887A1 (en) *	2004-07-19	2006-01-19	3M Innovative Properties Company	Method of hydrolyzing a dispersion of ionic fluoropolymer
US7671111B2 (en) *	2005-02-10	2010-03-02	E.I. Du Pont De Nemours And Company	Monitoring column breakthrough in a process for removing fluorosurfactant from aqueous fluoropolymer dispersions
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US20080015304A1 (en)	2006-07-13	2008-01-17	Klaus Hintzer	Aqueous emulsion polymerization process for producing fluoropolymers
CN101282788B (zh) *	2005-10-14	2011-04-06	旭硝子株式会社	碱性阴离子交换树脂的再生方法
US7404907B2 (en) *	2005-12-19	2008-07-29	Kelydra Elizabeth Welcker	Removal and recovery of ammonium perfluorooctanoate (APFO) from contaminated water
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WO2008066748A1 (en) *	2006-11-22	2008-06-05	Siemens Water Technologies Corp.	System and method for treating groundwater
US20100072134A1 (en) *	2007-03-06	2010-03-25	Mader Brian T	Ultrasonically induced cavitation of fluorochemicals
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JP5584123B2 (ja) *	2007-09-14	2014-09-03	スリーエムイノベイティブプロパティズカンパニー	超低粘度ヨウ素含有非晶質フルオロポリマー
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WO2019004298A1 (ja) *	2017-06-27	2019-01-03	ダイキン工業株式会社	含フッ素ポリマー製造工程から生じる水性流体を処理する方法およびシステム
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EP3760649B1 (de)	2018-03-01	2024-01-24	Daikin Industries, Ltd.	Verfahren zur herstellung von fluorpolymer
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US20220119561A1 (en)	2019-02-01	2022-04-21	Daikin Industries, Ltd.	Method for producing polytetrafluoroethylene
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US11548800B2 (en)	2019-04-26	2023-01-10	Geyser Remediation LLC	Water purification apparatus and method
JP7417129B2 (ja) *	2019-04-26	2024-01-18	ダイキン工業株式会社	水の処理方法および組成物
JP2022535815A (ja)	2019-06-04	2022-08-10	スリーエムイノベイティブプロパティズカンパニー	多官能性フッ素化化合物、その化合物から製造されるフッ素化ポリマー、及び関連方法
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EP4026854A4 (de)	2019-09-05	2024-01-17	Daikin Industries, Ltd.	Wässrige polytetrafluorethylendispersion
WO2021066189A1 (ja)	2019-10-03	2021-04-08	ダイキン工業株式会社	ポリテトラフルオロエチレンおよびその製造方法
JP7417131B2 (ja)	2019-11-19	2024-01-18	ダイキン工業株式会社	ポリテトラフルオロエチレンの製造方法
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WO2021127346A1 (en)	2019-12-20	2021-06-24	3M Innovative Properties Company	Fluorinated copolymer and compositions and articles including the same
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US12410071B1 (en)	2020-10-19	2025-09-09	Wm Intellectual Property Holdings, L.L.C.	System and method for removal of PFAS and other emerging contaminant micro-constituents from landfill leachate and other impacted liquids
WO2022107894A1 (ja)	2020-11-19	2022-05-27	ダイキン工業株式会社	ポリテトラフルオロエチレンの製造方法およびポリテトラフルオロエチレンを含有する組成物
US20240132643A1 (en)	2021-02-26	2024-04-25	3M Innovative Properties Company	Process for Making a Fluoropolymer and Fluoropolymer Made Therefrom
AU2022248996B2 (en) *	2021-04-02	2024-12-19	Emerging Compounds Treatment Technologies, Inc.	System and method for separating competing anions from per- and polyfluoroalkyl substances (pfas) in water
WO2023057926A1 (en)	2021-10-07	2023-04-13	3M Innovative Properties Company	Composite including fluorinated polymer and lithium fluoride nanoparticles and articles including the same
US11840471B1 (en)	2021-12-20	2023-12-12	Republic Services, Inc.	Method for removing per- and polyfluoroalkyl substances (PFAS) from waste water
WO2023208919A1 (en)	2022-04-28	2023-11-02	Röhm Gmbh	Poly(meth)acrylat impact modifier with reduced metal ion content and method for its production

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1314607A (en)	1969-09-12	1973-04-26	Kureha Chemical Ind Co Ltd	Method for recovering perfluorinated emulsifiers
US3882153A (en) *	1969-09-12	1975-05-06	Kureha Chemical Ind Co Ltd	Method for recovering fluorinated carboxylic acid
DE2903981A1 (de) *	1979-02-02	1980-08-07	Hoechst Ag	Rueckgewinnung fluorierter emulgatorsaeuren aus basischen anionenaustauschern
DE2908001C2 (de) *	1979-03-01	1981-02-19	Hoechst Ag, 6000 Frankfurt	Verfahren zur Herstellung konzentrierter Dispersionen von Fluorpolymeren
US5017480A (en) *	1987-08-10	1991-05-21	Ajimomoto Co., Inc.	Process for recovering L-amino acid from fermentation liquors
DE4213154C1 (de)	1992-04-22	1993-06-17	Hoechst Ag, 6230 Frankfurt, De
DE4402694A1 (de)	1993-06-02	1995-08-03	Hoechst Ag	Verfahren zur Rückgewinnung von fluorierten Carbonsäuren

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ATE307793T1 (de)	2005-11-15
HUP0102469A2 (hu)	2001-10-28
AU4370199A (en)	1999-12-20
CN1303363A (zh)	2001-07-11
ZA200006907B (en)	2001-08-07
EP1084097B1 (de)	2002-08-14
CN1134403C (zh)	2001-07-11
ES2176137T3 (es)	2003-03-01
EP1193242A1 (de)	2002-04-03
ATE222229T1 (de)	2002-08-15
TR200003530T2 (tr)	2001-03-21
US6613941B1 (en)	2003-09-02
DE59912723D1 (de)	2005-12-01
DE19824614A1 (de)	1999-12-09
WO1999062858A1 (de)	1999-12-09
RU2226186C2 (ru)	2004-03-27
ES2176137T1 (es)	2002-12-01
KR20010071377A (ko)	2001-07-28
DE59902354D1 (de)	2002-09-19
KR100518480B1 (ko)	2005-10-05
PL193358B1 (pl)	2007-02-28
EP1193242B1 (de)	2005-10-26
CA2334105A1 (en)	1999-12-09
EP1084097A1 (de)	2001-03-21
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